# Airgas SRVS vs Linde Data Booklet

The clearest difference is update cadence: Airgas SRVS at every 9 months against Linde Data Booklet's every 27 months. Linde Data Booklet's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Airgas SRVS ships an update every 9 months, Linde Data Booklet every 27 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Airgas SRVS | Linde Data Booklet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (10 ratings)](https://appshunter.io/ios/app/airgas-srvs/id875275554/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 27 months |
| Monetization | Free | — |
| Size | 104 MB | 20 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Airgas](https://appshunter.io/developer/875275557) | [Linde GmbH](https://appshunter.io/developer/657403417) |

## What reviewers say

### Airgas SRVS

[App page](https://appshunter.io/ios/app/airgas-srvs/id875275554)

This utility app helps users manage gas mixes, track certificate expirations, and access safety data sheets for scanned products. It also provides equipment recommendations and allows for defining storage locations and product nicknames.

**Highlights:** Gas mix capabilities up to 15 components, Certificate expiration tracking, Equipment recommendations by product, Direct links to SDS, Define storage locations and product nicknames

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Linde Data Booklet

[App page](https://appshunter.io/ios/app/linde-data-booklet/id1094377291)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Airgas SRVS free?

Airgas SRVS is free to download, with no in-app purchases.

### Is Linde Data Booklet free?

Linde Data Booklet is free to download, with no in-app purchases.

### Do Airgas SRVS or Linde Data Booklet have ads?

Neither Airgas SRVS nor Linde Data Booklet shows ads.

### Which is updated more often, Airgas SRVS or Linde Data Booklet?

Airgas SRVS ships an update every 9 months, and Linde Data Booklet every 27 months. Most recently, Airgas SRVS was updated on November 1, 2026 and Linde Data Booklet on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*